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Cloth: Collision improvements

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This commit includes several performance, stability, and reliability
improvements to cloth collisions.

Most notably:
* The implementation of a new self-collisions system.
* Multithreading of collision detection.
* Implementation of single sided collisions and normal overrides.
* Replacement of the `plNearestPoints` function from Bullet with a
dedicated solution.

Further, this also includes several bug fixes, and algorithmic
improvements.

Reviewed By: brecht

Differential Revision: http://developer.blender.org/D3712
This commit is contained in:
Luna Rood
2018-09-26 17:18:16 +02:00
parent a27d97d1b7
commit 0666ece2e2
16 changed files with 1072 additions and 942 deletions
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16
source/blender/makesrna/intern/rna_object_force.c
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@@ -958,6 +958,22 @@ static void rna_def_collision(BlenderRNA *brna)
RNA_def_property_ui_text(prop, "Absorption",
"How much of effector force gets lost during collision with this object (in percent)");
RNA_def_property_update(prop, 0, "rna_CollisionSettings_update");
prop = RNA_def_property(srna, "cloth_friction", PROP_FLOAT, PROP_NONE);
RNA_def_property_float_sdna(prop, NULL, "pdef_cfrict");
RNA_def_property_range(prop, 0.0f, 80.0f);
RNA_def_property_ui_text(prop, "Friction", "Friction for cloth collisions");
RNA_def_property_update(prop, 0, "rna_CollisionSettings_update");
prop = RNA_def_property(srna, "use_culling", PROP_BOOLEAN, PROP_NONE);
RNA_def_property_boolean_sdna(prop, NULL, "flag", PFIELD_CLOTH_USE_CULLING);
RNA_def_property_ui_text(prop, "Single Sided", "Cloth collision acts with respect to the collider normals (improves penetration recovery)");
RNA_def_property_update(prop, 0, "rna_CollisionSettings_update");
prop = RNA_def_property(srna, "use_normal", PROP_BOOLEAN, PROP_NONE);
RNA_def_property_boolean_sdna(prop, NULL, "flag", PFIELD_CLOTH_USE_NORMAL);
RNA_def_property_ui_text(prop, "Override Normals", "Cloth collision impulses act in the direction of the collider normals (more reliable in some cases)");
RNA_def_property_update(prop, 0, "rna_CollisionSettings_update");
}
static void rna_def_effector_weight(BlenderRNA *brna)